#多个数相加
i = 0
sun =0
while i<=100:
    sun += i
    i +=1


print(sun)




#--------------------

#10*10的星星

i = 0;
while i<=10:
    j = 0  
    while j<=10:
        if j%2==0:#偶数行空白星星
            print('☆',end='')
        else:
            print("★",end='')
        j+=1
    i+=1
    print('\n',end='')

print('\n',end='')
print('\n',end='')
print('\n',end='')


i=1
while i<=8:
    j=1
    while j<8:
        if j%2==0:
            print('☆',end='')
        else:
           print('★',end='') 
        j+=1
    print('\n',end='')
    i+=1


    
print('\n',end='')
print('\n',end='')
#---------------------

i=1
while i<=8:
    if i%2==0:
        j=1
        while j<=8:
            print('☆',end='')
            j+=1
        print('\n',end='')
    else:
        j=1
        while j<=8:
            print('★',end='')
            j+=1
        print('\n',end='')
    i+=1
    





































